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Platinum- and platinum alloy-coated palladium and palladium alloy particles and uses thereof

United States Patent

April 6, 2010
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
Platinum- and Platinum Alloy-Coated Palladium and Palladium Alloy Particles and Uses Thereof
The present invention relates to particle and nanoparticle composites useful as oxygen-reduction electrocatalysts. The particle composites are composed of a palladium or palladium-alloy particle or nanoparticle substrate coated with an atomic submonolayer, monolayer, bilayer, or trilayer of zerovalent platinum atoms. The invention also relates to a catalyst and a fuel cell containing the particle or nanoparticle composites of the invention. The invention additionally includes methods for oxygen reduction and production of electrical energy by using the particle and nanoparticle composites of the invention.
Adzic; Radoslav (East Setauket, NY), Zhang; Junliang (Stony Brook, NY), Mo; Yibo (Naperville, IL), Vukmirovic; Miomir Branko (Port Jefferson Station, NY)
Brookhaven Science Associates, LLC (Upton, NY)
11/ 019,759
December 22, 2004
This invention was made with Government support under contract number DE-AC02-98CH10886, awarded by the U.S. Department of Energy. The Government has certain rights in the invention.